Multiple deformation mechanisms of Ti-22.4Nb-0.73Ta-2.0Zr-1.34O alloy

被引：55
|
作者：
Yang, Y. [1 ,2 ]
Li, G. P. [1 ]
Cheng, G. M. [1 ,2 ]
Li, Y. L. [1 ]
Yang, K. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 06期
关键词：
compressive testing; dislocations; martensitic transformations; niobium alloys; plastic deformation; tantalum alloys; texture; titanium alloys; twinning; zirconium alloys; BETA-TITANIUM ALLOY; ZR-O ALLOYS; PHASE-STABILITY; PLASTIC-DEFORMATION; GUM METAL; MARTENSITIC-TRANSFORMATION; BEHAVIOR; MICROSTRUCTURE; SUPERELASTICITY;
D O I：
10.1063/1.3078521
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ti-22.4Nb-0.73Ta-2.0Zr-1.34O (at. %) alloy after cold compression to similar to 5.2% strain was investigated. The alloy exhibited multiple plastic deformation mechanisms, including the stress-induced alpha(') martensitic (SIM alpha(')) and omega phase transformations, 1/2 < 111 > dislocations slipping on the {112}beta planes as well as {332}< 113 >beta and {112}< 111 >beta twinning, which have not previously been reported to coexist in a titanium alloy. It was also found that beta phase with the {200} planes vertical to the compression direction was almost completely consumed away by a beta -> SIM alpha(') transformation, and a (100) texture of SIM alpha(') formed.
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页数：3
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